TM 9-2320-272-24-3
4-52. AIR COMPRESSOR MAINTENANCE
THIS TASK COVERS:
a. Disassembly
c. Assembly
b. Cleaning and Inspection
INITIAL SETUP:
MATERIAL/PARTS (Contd)
APPLICABLE MODELS
Gasket (Appendix D, Item 200)
M939A2
Gasket (Appendix D, Item 198)
TOOLS
Gasket (Appendix D, Item 138)
Four lockwashers (Appendix D, Item 382)
General mechanic's tool kit (Appendix E, Item 1)
Compression ring (Appendix D, Item 39)
Gear puller (Appendix E, Item 102)
Three oil rings (Appendix D, Item 517)
Torque wrench (Appendix E, Item 144)
Engine oil (Appendix C, Item 49)
Ring compressor (Appendix E, Item 32)
Antiseize tape (Appendix C, Item 72)
MATERIALS/PARTS
REFERENCES (TM)
Air compressor repair kit (Appendix D, Item 4)
TM 9-2320-272-24P
Two screw-assembled lockwashers
(Appendix D, Item 579)
EQUIPMENT CONDITION
Two screw-assembled lockwashers
Air compressor removed (para. 3-206).
(Appendix D, Item 580)
Four lockwashers (Appendix D, Item 364)
Compression ring (Appendix D, Item 38)
Gasket (Appendix D, Item 199)
Gasket (Appendix D, Item 186)
1.
Remove elbow (2) from unloader valve body (1).
Remove elbow (17) and two adapters (7) from compressor head cover (18).
2.
Remove four screws (10), lockwashers (9), washers (8), adapter (11), and gasket (12) from
3.
compressor crankcase (16). Discard lockwashers (9) and gasket (12).
4.
Remove two screws (13), air inlet block (14), and gasket (15) from compressor head cover (18).
Discard gasket (15).
Remove two screw-assembled lockwashers (20), washers (19), unloader valve body (1), unloader
5.
valve spring (3), intake valve (4), and intake valve spring (6) from compressor head cover (18).
Discard screw-assembled lockwashers (20), unloader valve spring (3), and intake valve
spring (6).
Remove intake valve (4) from valve seat (5). Discard intake valve (4).
6.
Remove unloader valve cap (23), packing seal (22), and O-ring (21) from unloader valve body (1).
7.
Discard unloader valve cap (23), packing seal (22), O-ring (21), and unloader valve body (1).
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